mosque-goer vs towelhead

mosque-goer

noun
  • One who (regularly) attends a mosque; a practicing Muslim. 

towelhead

noun
  • A member of the Muslims, Arabs, Sikhs, and other groups that traditionally wear headdress such as a turban and keffiyeh or headscarf. 

How often have the words mosque-goer and towelhead occurred in a corpus of books? (source: Google Ngram Viewer )